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Updated: Mar 23, 2026

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
Published on: May 29, 2018
Photoisomerization of Vibrationally Hot Tetramethylethylene Produced by Ultrafast Internal Conversion from the
Motoki Sato1, Shunsuke Adachi1, Toshinori Suzuki1
1Department of Chemistry, Graduate School of Science, Kyoto University , Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
Abstract:
Isomerization of tetramethylethylene (TME) following ultrafast internal conversion was investigated using time-resolved photoelectron spectroscopy with vacuum-ultraviolet probe pulses. The difference photoelectron spectrum at τ = 15 ps was reasonably well reproduced using a linear combination of static photoelectron spectra of TME and its isomers. The isomers were produced as a consequence of unimolecular reaction of vibrationally hot TME, created by internal conversion from the excited state.
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